Front portion of an automobile



FIG. 1 is a front perspective view of a front portion of an automobile showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof, the left side view being a mirror image thereof; and,

FIG. 6 is a top plan view thereof.

The portion depicted in light contrast is environment and forms no part of the claimed design. 

The ornamental design for a front portion of an automobile, as shown and described. 